52results about How to "The processing method is scientific and reasonable" patented technology

The invention discloses a method for continuously processing degradation-resistant wastewater by means of microwave catalysis and an implementation device thereof. Granular catalyst is filled into quartz tubes to form quartz tube catalyst columns; the quartz tube catalyst columns are placed into a microwave field to form catalyst fixing beds, wherein the intersection angle of the axial direction of the quartz tube catalyst columns and the direction of the irradiation microwave is not less than 45 degrees; wastewater to be processed continuously flows through the catalyst fixing beds, so that pollutants in the wastewater can be removed under the combined action of the microwave and the granular catalyst; processed water and gas produced during wastewater treatment are discharged; the granular catalyst is husk-like granular activated carbon prepared through carbonization, smashing, bonding formation and carbon dioxide activating treatment. With adoption of the method, continuous industrialized degradation of degradation-resistant wastewater can be realized, the operation is simple, the automatic control is facilitated, the application to different wastewater processing amounts can be realized by means of increasing or decreasing the number of the quartz tube catalyst columns, the investment and the operation cost are low, and the removal efficiency is high.

The invention discloses a treatment method for recycling waste red mud residues. The treatment method comprises the following steps of: firstly, injecting red mud slurry with a water content of 150-300 percent into an infiltration pond for primary dewatering, and after dewatering, obtaining red mud and a sodium hydroxide solution; injecting the sodium hydroxide solution into a liquid collection pond and returning to an aluminum oxide plant for recycling; sending the primarily dewatered red mud into roller kiln for drying to obtain red mud powder; adding an additive to the red mud powder, uniformly stirring and granulating; sinking and floating a mixture material after granulating and then sending the mixture material into a molding machine for pressing and molding into brick blanks; and pouring the brick blanks into a tunnel kiln to dry and burn into clay bricks. Material inlets of the roller kiln and the tunnel kiln are additionally and respectively provided with a waste gas recoverydevice for collecting waste sodium hydroxide gas generated during drying, and the sodium hydroxide solution is obtained through cooling, injected into the liquid collection pond and returned to the aluminum oxide plant for recycling. The method can greatly improve the utilization rate of the red mud, maximally utilize the red mud and change wastes into values. The invention has scientific treatment method, environmental protection and no three waste discharges.